Opti-Lube products are completely compatible with ULSD and the latest emissions systems, including 2017 vehicles. For over 15 years, Opti-Lube has been extending equipment & vehicle life through improved lubrication. From vehicles to power plants, Opti-Lube products are chosen to reduce wear & lower energy costs. Explore our site and find out how Opti-Lube advanced lubricants can save you money. Also check out our GENERAL DIESEL INFO PAGE.